package com.hx.petsever.utils;

import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTCreator;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.DecodedJWT;

import java.util.Calendar;
import java.util.Map;

public class JWTUtils {


    private static final String SING = "!Q@W3e4r%T^Y";


    /**
     * 生成token  header.payload.sing
     */
    public static String getToken(Map<String, Object> map) {

        Calendar instance = Calendar.getInstance();
        instance.add(Calendar.DATE, 7);//默认7天过期

        //创建jwt builder
        JWTCreator.Builder builder = JWT.create();

        builder.withClaim("id", (Integer) map.get("id"));
        builder.withClaim("username", (String) map.get("username"));


        String token = builder.withExpiresAt(instance.getTime())//指定令牌过期时间
                .sign(Algorithm.HMAC256(SING));//sign
        return token;
    }

    public static DecodedJWT verify(String token) {
        return JWT.require(Algorithm.HMAC256(SING)).build().verify(token);
    }

}
